Water-cooled coupling



May 2, 1939. E. DURRELL WATER-COOLED COUPLING Filed April 20, 1936 INVENTOR grngst L .Durrll ATTORN EYS 5 2. use

, Patented ATENT OFFICE wncoonnn one 7 Ernest L. Dnrreii, Detroit, Mich" asslgnor to American- Blower Corporation, Detroit, .a corporation of Delaware Mich,

Application A 20, 1936. Serial No. 75,501

as to provide its maximum eiilciency for itself and the oil it contains.

It. is an object to provide means of applying cold water or other cooling fluid on the surface 0! a rotating vdrauliccoupling, and oi throwing the heated water away from the'coupling by reason of its rotation. J j

Referring to the Figure lis a di view showing the arrangement of the water sprays with respect to the surface of the coupling within the containon the line 2-2 of Figan excess heat.

For this purpose the coupling is wholly or partially enclosed with a containing box I. The coupling is, designated 2. The shafts 3 and Q are "connected by the coupling. As this'coupling rotateathe water sprays t are applied by the pipes {to the surface oithe coupling. The centrifugal force acting upon the water, due to the rotation of the coupling, throws thewaterofl against the sidewalls orthe box I, whence it runs down into .11 desired, a thermostaticcontrol m 6ssive tothe temperature at or adjacent the couto the drawing in detail, the con pling can be arranged, as in Figure 2, so as to accurately control the temperature of the coupling by varying the quantity of water passing through the sprays or nomles by adjusting the valve ta. The pipes may be perforated or fitted with nozzles or sprays. They are placed in such a manner that a flow of water is directed from these outlets upon the exterior surface of the hydraulic couplings;

By this invention it is possible to hold the coupling in a stalled position for an indefinite length of time, when transmitting full engine torque, at

a constant temperature of such a degree as not to' be detrimental to the oouplings operation or the oil in the coupling.

It will be understood that I, desire to comprehend within my invention such modiflcationsas may be necessary to adapt it to varying conditions-and uses.

Having thus fully described my invention, what I claim as new and desire to secure by Letters Patent is: x

.In a hydraulic transmission, a hydraulic coupling having a rotary casing and a plurality of rotors therein with vanes positioned for reaction with a working liquid therein, said working fluid'transmitting to said casingthe heat produced by said reaction,- a housing enclosing said coupling, a fluid-withdrawing conduit connected to said housing. a plurality of spray nozzles in said housing directed at said casing, a cooling fluid discharge conduit connected to said nozzles, a valve in saiddischarge conduit arranged to control the distribution of cooling fluid to said nozzles, a valve actuator connected to said valve, a-thermostat within said enclosure adjacent said coupling casing and operatlvely responsive to the heat given oil by said coupling casing. and mech anism operatively connecting said thermostat to said valve actuator whereby to control the dis-- ."tribution oi cooling iiuid to said hydraulic coupling by the temperature in the vicinity of the of said hydraulic coupling.

LDURRILL. 

